TWI286874B - Cooling mechanism for cooling electric driving part of injection molding machine and cooling method for the same - Google Patents

Abstract

A cooling mechanism for cooling an electric driving part of an injection molding machine, includes a cooling part for cooling the electric driving part; and an actuating part actuated by being supplied an actuating fluid, the actuating fluid being in fluid communication with the cooling part. The actuating fluid may be used as a cooling fluid for cooling the electric driving part.

Description

曰 correcting the cooling portion to be injected into the electric drive unit of the machine and receiving the working fluid; 2 having the operation of the drive unit of the electric drive molding machine such as ==3, the cold portion mechanism of the hybrid injection 1 and Cooling method. [Prior Art] In the injection molding machine, the grease is injected and filled in the phoenix of the phoenix, and the sap of the tree is in the cavity of the metal enamel device, so that it is solidified in the cold part of the mold cavity. It becomes a molded product. In the jade jade cavity. Including the metal mold device, the mold clamping device and the injection mold, the Gui Zhan ϊ I includes the fixed mold and the movable mold. By means of the clamping device, the mold is closed and closed, and the mold is closed and molded. The injection device ^ and the freely rotatable injection nozzle _ = # in the heating cylinder allow the grease to be filled from the mold cavity of the mold device from the front end of the heating rainbow. The injection device further includes a support for the injection molding machine frame to allow the injection device to move. If the plasticizing mobile device is operated, the nozzle port contacts or 'can be formed in the state of the fixed platen at the front end of the injection nozzle, and the fixed platen of February t: 杈. Then, when the nozzle is in contact with the solid, the moon will be ejected from the injection nozzle.

Just shoot it into your I fU, including the 黧 ^ ^ , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ---- Shape machine, working in the hydraulic working department when shooting. except

2001-5674-PFl(Nl).ptc Page 5 1286874 Case No. 92114681 Revision

5. In the description of the invention (2), the closed product as the device is ejected to overcome the work, and the cooling circuit is used as the cooling mode. Therefore, the amount of the moving part of the strong driving part such as the fan needs to be large. In addition, the Ministry produces electric short-circuits such as rot and short circuit. ί Motor body Mandatory pair is also used as a drive to the electric body flow path to cool the electrical system to generate heat transfer equipment when the electricity is turned on. Out of the box, the motor (motor) in the mold clamping, 4 and plasticized movement is driven to squeak 4 θ to 'achieve metal mold ^, mold opening, metering, back pumping, nozzle contact and motor When the (motor) is the driving unit, the heat generated by the ventilation causes the motor such as the fan provided at the motor to perform air cooling (forced air cooling method). Further, in the motor including the injection of the motor and the motor, the outer casing of the forced air cooling drive unit is provided with a jacket, and a cooling fluid such as water or oil is passed through the cooling fluid to drive the driving portion. (Cooling fluid drive method). ^ However, in the case of the forced air cooling method, only the driving unit performs air cooling, so that the heat of the electric heat cannot be sufficiently radiated, so that the driving is inevitably lowered. In addition, the cooling fluid passage method additionally increases the size of the injection molding machine and increases the production cost of the cooling fluid. The water quality causes the water temperature in the cooling fluid flow path to condense due to the temperature, thereby causing the horse. Accordingly, an object of the present invention is to provide a structure and cooling method for solving the above-described problem of sufficiently cooling the injection molding of the injection molding machine drive unit. 7 machine drive unit cooler

Forming machine electric drive unit

2001-5674-PFl(Nl).ptc Page 6 1286874 曰Revision 5, the cooling mechanism of the invention (3) is a cooling mechanism for cooling the electric drive unit of the injection molding machine, wherein cooling including cooling the electric drive unit is included And a working portion that operates by receiving supply of a working fluid that is fluid-transferred to the cooling portion; the working fluid is used as a cooling fluid that cools the electric driving portion. Further, in order to achieve the object of the present invention, a cooling method for an electric drive unit of an injection molding machine according to the present invention is suitable for an injection molding machine including an electric drive unit and a working portion that operates by receiving supply of a working fluid, wherein the working fluid is It is used as a cooling fluid for cooling the electric drive unit. [Embodiment] Hereinafter, preferred embodiments of the present invention will be described with reference to Figs. Referring to Fig. 1, there is shown a schematic configuration of an injection molding machine according to an embodiment of the present invention. The injection molding machine 10 is a hybrid injection molding machine including an electric drive unit and a working unit that receives operation by supplying a working fluid. The injection molding machine 10 includes an injection device 20 and a mold clamping device 50. The injection device 20 includes a heating element 21, and the hopper 2, 2 is provided in the heating cylinder 21. Further, a screw 23 is disposed in the heating cylinder 21, and is freely rotatable. An injection cylinder 24 is provided at the rear of the screw 23. An injection piston 25 that moves linearly is provided in the cylinder 24. The injection piston is reciprocated from the hydraulic oil supplied from the oil passage 28, so that the screw 23 is fed into the working portion of the working (10) for m ^^24 ^ ^ ώ ^ ^ ^ ^ ^ ^ ^ ^, which is a hydraulic cylinder 98 (see figure). 2) The rear part of the injection piston 25 is provided, and the servo motor 27 of the screw is provided as the electric drive unit, and the hopper, the ψ 仏 - - - - - 、 、 射 射 射 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128 128

Correction - * The clamping device 50 includes a movable platen 52 on which the movable mold 5i is mounted and a fixed platen 54 on which the fixed mold 53 is mounted. The movable platen 52 is connected to the elbow support ^ described later by the guide rod 55. The movable platen 52 is slidable along the guide bar 55. Further, the clamping device 5 is further connected to the movable platen 52 and the other end is connected to the elbow mechanism 57 of the elbow support 56. The ball screw 59 is supported at the center of the toggle support 56 and is free to rotate. ^ The nut screw 59 is screwed to the ball screw 59, and the nut 61 is formed on the crosshead 60 provided on the elbow mechanism 57. Further, a pulley is provided at the rear end of the ball screw 59

62" A timing belt 65 is stretched between the output shaft "and the pulley" of the mold clamping motor 63 such as a feeding motor. When the mold clamping device 50' drives the mold clamping motor 63 corresponding to the driving portion, the rotation of the mold clamping motor 63 is transmitted to the drive transmission member, i.e., the ball screw 59, by the timing belt 65. Then, by the ball screw 59 and the nut 61, the moving direction is converted into a linear motion by the rotational motion, and the toggle mechanism 57 works. When the toggle mechanism 5 7 is operated, the movable platen 52 will slide along the guide bar 55, and the servo motor 2 for rotating the screw 23 of the injection molding machine 10 shown in Fig. 1 is not shown. Figure 7 of the cooling device. Referring to Fig. 2, the servo motor 27 includes a drive unit casing 34, a stator 35, a rotor 3#6, an output shaft 33, and the like. The stator 35 is mounted to the drive unit casing 34; the rotor 36 is rotatably provided in the radial direction of the stator 35; the output shaft 33 extends through the rotor 36, and the first bearing 31 and the second bearing 32 are mounted on the drive. The inside of the casing 34 is free to rotate.

2001-5674-PFl(Nl).ptc Page 8 1286874

The first bearing and the second side plates 4 4 and 45 are pulled together, and the first bearing 31 is attached to the side plate n-shaped motor frame 46. @侧秘上; The stator 35 is mounted on the horse = 4 on the 6th. The second bearing 32 is mounted on the 2nd dice 35-belt coil (not shown), winter & B±, . ^97 ^ ^ Field coil is supplied to The constant current is driven 'then the rotor 36 is rotationally transmitted at a rotational speed corresponding to the magnitude of the current to the output shaft μ on which the rotor 36 is mounted. (The anti-load side of θ - n t is the wheel-out (four) axis-free code 1147 with the end of the machine member's thorns 以, for the speed detecting portion of the motor 27 speed.

The spline shaft 42 is formed on the load side of the output shaft 33, that is, the axial direction of the output shaft 33 and one end of the above-described illustration. Further, a spline sleeve 43 is formed at an end portion of the injection piston 25 provided inside the injection cylinder 24 shown in Fig. i. The spline shaft 42 and the spline sleeve 43 constitute a spline fitting 41. The torque generated by the drive servo motor 27 is transmitted to the injection piston 25 via the spline fitting 41 to rotate the screw 23. However, heat will be generated when the servo motor 27 is driven. Therefore, the heat-dissipating servo motor 27 is mounted on the outer periphery of the drive unit casing 34 to serve as a cold portion. The outer casing 51 includes a cooling fluid supply port 72, a cooling fluid discharge port 73, and a cooling fluid flow path 74. The oil of a given temperature is supplied by the cooling fluid supply port 72 as a cooling fluid. The oil whose temperature becomes higher after the servo motor 27 is cooled is discharged from the cooling fluid discharge port 73. The cooling fluid flow path 74 connects the cooling fluid supply port 72 and the cooling fluid discharge port 73, and is provided in a spiral shape or a meander shape (e.g., meandering).

2001-5674-PFl(Nl).ptc Page 9 1286874 -- Case No. 92114681_ Che Yueri Repair g__ ' V. Description of invention (6) Water or refrigerant can be used. Further, in the present embodiment, the cooling fluid flow path 74 has a spiral shape or a meander shape. However, an inlet side manifold may be provided in the cooling fluid supply port 72 and an outlet side manifold may be provided in the cooling fluid discharge port 73, on the inlet side. A plurality of parallel cooling fluid flow paths are formed between the manifold and the outlet-side manifold, whereby a plurality of cooling fluid flow paths can be formed along the wheel-out shaft 33. The oil supplied to the cooling fluid flow path 74 in the direction of the arrow A by the cooling fluid supply port 7 2 flows backwards (left side in the drawing) while being meandered as indicated by an arrow B, and cools the servo motor 27 7 in the flow. Finally, it is discharged from the cooling fluid discharge port 7 3 in the direction of the arrow c. However, Fig. 3 shows the temperature distribution of the servo motor 27 shown in Fig. 2. Referring to Fig. 3, the heat is transmitted to the side of the servo motor 27 in the axial direction of the connecting member (load side) It is transferred to the side that is not connected to the machine component (reverse load side). That is, at the load side second bearing 32, the heat generated by the load bearing weight and transmitted to the motor frame 46 is more than the heat generated at the first load 31 on the counter load side and transmitted to the motor frame 46. Further, heat generated by the change in the direction of movement on the ball screw 41 is also transmitted to the output shaft 33 of the servo motor 27 via the ball screw 41. On the other hand, in the present embodiment, the heat-resistant member, i.e., the encoder 47 for detecting the rotational speed of the servo motor 27, is disposed on the counter-load side where the heat transfer is small, that is, the rear end of the output shaft 33. According to this configuration, the encoder 47 does not overheat, and the thermal influence on the encoder 47 can be alleviated.

As described above, in the present embodiment, the cooling fluid supply port 72 for supplying the low temperature oil is provided on the load side, and the cooling fluid discharge port 7 for discharging the high temperature oil is 1,128,874 ---~·Μ虎 92] 14fiS1 Description of the invention ( 7) Set on the counter-load side 曰 five corrections, η Ί only ° 仓 科 t忐 can make the temperature difference between the oil on the load side and the motor 27 is large, and on the opposite side of the oil plate people; 圭9 7,, w μ, people are efficient, motor 27 is now small. Therefore, the cold rated hot-roller cooling servo motor 27 of the outer casing 71 can be increased, and the servo motor 27 can be increased accordingly. In this embodiment, the temperature of the servo motor 27 is detected as a positive pressure ίί. The degree detecting unit is provided with a thermistor, the side temperature sensor 79-1 and the counter load side temperature sensor 79-2 on the load side and the counter load side, respectively. Specifically, the load side temperature sensor 79-1 is attached to the end portion of the stator 35 on the side of the second side plate 45. The heat transferred to the servo motor 27 to the side of the same machine component (load side) is much more heat than the side that is not connected to the machine component (reverse load side), that is, the load side temperature ratio is opposite. Since the load side temperature is high, the load side temperature can be directly detected by the load side temperature sensor 79-1. The anti-load side temperature sensor 7 9 - 2 is specifically mounted on the end portion of the stator 35 on the side of the first side plate 4 4 . When the temperature detected by the counter-load side temperature sensor 79-2 exceeds the threshold value, the control unit (not shown) stops the supply of power to the stator 35 and stops the servo motor 27. Here, the threshold is determined by reference to the temperature difference between the load side and the counter load side. Specifically, the counter load side threshold is lower than the load side threshold. When the operation abnormality occurs and the cooling medium (oil) of the servo motor 27 gradually flows through the outer casing 71, the temperature on the counter load side becomes higher than the temperature on the load side, and the load side threshold value is more than the load side threshold value. Low setting can detect early occurrence of abnormal work.

2001-5674-PFl(Nl).ptc Page 11 1286874

^The temperature rise caused by the equalization of the axial temperature distribution of the motor 27 is so that the servo motor can prevent the temperature of the motor 27 from being overheated when the servo temperature rises. Further, since the axial temperature distribution of the servo motor 27 can be made uniform, the S: S is overheated. Therefore, when the second bearing 32 is packaged with the lubricant, the deterioration of the lubricant can be avoided. Further, since the counter-load side temperature sensor 79-2 is provided in the vicinity of the encoder 47, the temperature in the vicinity of the encoder 47 is detected. Therefore, the counter-load side temperature sensing state 79-2 can also be used for the encoder 47 protection monitoring.

In this embodiment, since both the load side and the counter load side are provided with temperature sensing (79-1, 79-2), the load side temperature sensor 79-1 provided on the load side can be utilized. For normal working detection, the counter-load side temperature sensor 7 9-2 is used as a probe operation abnormality. Hereinafter, a hydraulic circuit 90 that functions as an oil supply device that supplies oil to the outer casing 7 1 of the servo motor 27 will be described with reference to Fig. 2 . The hydraulic circuit 90 includes a circulation tank 91, a first pump 95, a second pump 97, a heat exchanger 96, a hydraulic red 98, and oil passages L-1 to L-3. The hydraulic circuit 90 and the outer casing 71 constitute a cooling device for the servo motor 27. The circulation groove 91 functioning as a fuel tank includes a first groove 93 and a second groove

94. The first tank 93 stores the oil having a relatively high temperature, and the second tank 94 stores the oil having a lower temperature. The first tank 93 and the second tank 94 are separated by a partition plate 92 in the oil circulation groove 91. The through hole 99 is provided in the vicinity of the bottom surface of the partition plate 92, and the first groove 93 and the second groove 94 are communicated with each other. The first pump extracts the oil from the first tank 93 and supplies it to the outer casing 71. That is, the first pump

2001-5674-PFl(Nl).ptc Page 12 1286874 Case No. 92114681 修正 Amendment 5. Invention Description (9) 9 5 Acts as the first oil supply source, the circulation pump. The first pump 915 is provided on the oil passage L-1 that communicates with the first tank 913 and the cooling fluid supply port 7.2. The heat exchanger 96 cools the oil discharged from the jacket. The heat exchanger 96 is provided on the oil passage L-2 that communicates the cooling fluid discharge port 73 and the second groove 94. The second pump 97 extracts the oil in the second tank 94 and supplies it to the hydraulic cylinder 98. That is, the second pump 97 functions as a second oil supply source. The second pump 97 and the hydraulic cylinder 98 are provided on the oil passage L-3 which communicates with the second groove 94 and the first groove 93. The hydraulic cylinder 98 of the present embodiment is referred to as the injection cylinder 24 and the injection piston 25 for advancing and retracting the screw 23 shown in Fig. 1. The shooting cylinder 24 and the injection piston 25 are suitable for applications requiring high-speed operation and hydraulic driving at 13⁄4 speed. The hydraulic cylinder 798 is acted upon by the oil pumped by the second pump 97. After the hydraulic cylinder 98 is used, the oil which becomes high temperature is returned to the first tank 91. The first pump 95 is used to cool the servo motor 27. The second pump is used to operate the hydraulic cylinder 98. The capacity of the first pump 95 is smaller than the capacity of the second pump 97. Since the second pump 97 must maintain the hydraulic cylinder 98 to operate, it is required to have a large capacity. Further, the first pump 95 can handle the heat generated when the servo motor 27 is driven, so that the capacity of the first pump 95 is smaller than that of the second system 97. Further, a motor such as a servo motor can be used as a driving source for the pump 95 and the second pump 97. The first system 95 can use a fixed displacement pump with a certain displacement of pump oil, while the second millet 97 corresponds to the hydraulic cylinder "working mode, in addition to the fixed displacement of the pump, $ γ can be used with a variable displacement pump Variable displacement pump for oil. 1. When the second drive 97 is driven by the ®, the oil in the second tank 94 is extracted by the second pump 97 and supplied via the oil passage L-3. 5, read "or ^, σ To the night pressure cylinder 98. According to this, the injection piston 25 in the shooting cylinder 24 is driven to advance and retreat.

__The screw 23 is advanced and retracted. 1286874 --^ ^ , V, invention description (10) one - right, the oil is used to make the hydraulic cylinder 9 8 work, in terms of oil temperature, the temperature when the oil is stored in the first tank is stored in the second tank 94 is high. However, for the heat generated by the high-energy-driven servo motor 27, the oil stored in the first tank 93 includes sufficient allowable heat capacity, so the oil can be used to cool the servo motor 27 ° oil to operate the hydraulic cylinder 98 as a high temperature. The oil is discharged into the first tank 93. When the first pump 95 is driven, the high temperature oil in the first tank 93 is extracted by the first pump 95 and supplied to the outer casing 7 i of the servo motor 27 via the oil passage L-1. The oil supplied to the outer casing 71 of the servo motor 27 is heat-exchanged with the servo motor 27 in the outer casing 71 to cool the servo motor 27. As a result, the oil temperature is further increased. Then the oil is discharged from the outer casing 71, supplied to the heat exchanger 96 through the oil passage L-2, and the oil supplied to the heat exchanger 96 is heated by the cooling water in the heat exchanger 96. The exchange medium cools 'becomes a low temperature oil and is then discharged into the second tank 94. That is, in the present embodiment, in order to cool the servo motor 27, the high-temperature oil after the operation of the hydraulic cylinder 98 is constantly flown to the servo motor 27. Therefore, the servo motor 27 can be effectively cooled at high thermal efficiency. Further, there is no need to additionally provide a large-scale dedicated device for cooling the servo motor 27, so that the servo motor 27 can be efficiently cooled by a simple configuration. In this case, the oil in the second tank 94 is supplied to the hydraulic cylinder 98, and the hydraulic cylinder 98 is operated and discharged into the first tank 93. Further, the oil in the first tank 93 is supplied to the outer casing 71 to cool the motor 2, and then supplied. It is cooled to the heat exchanger 96 until it is discharged into the second tank 94. As a result, in the circulation tank 9丨, the high-temperature return oil is placed separately from the cooled oil, that is, placed in the first tank 93 and the second tank 94 respectively. 0 1286874 __Case No. 92114681__年月日日_倏正_ V. INSTRUCTION OF THE INVENTION (11) Here, since the second pump 97 is a variable displacement pump, the displacement of the first pump 95 and the second pump 97 may be different. When the displacement of the first pump 95 becomes smaller than the displacement of the second pump 97, the amount of oil discharged from the first tank 93 through the oil passage L-1 and discharged into the second tank 94 will be less than that from the second The groove 94 is drawn through the oil passage L-3 and discharged into the oil amount of the first tank 93. However, since the first groove 93 and the second groove 94 communicate with each other through the through hole 99 (as described above, which is formed by isolating the circulation groove 91 into the first groove 93 and the second groove 94), The oil level of the first tank 93 and the second tank 94 is always equal. As described above, since the through hole 99 is formed in the partition plate 92 near the bottom surface of the circulation groove 91, the temperature difference between the oil in the first groove 93 and the oil in the second groove at the periphery of the through hole 99 is small. Therefore, the temperature of the second tank 94 is lowered by the temperature of the cooling oil due to the inflow of oil from the through hole 9 9 or the temperature of the high temperature return oil in the first tank 93 is lowered. In addition, because the first pump 95 uses a fixed displacement pump, its displacement can maintain the servo motor 27 at an appropriate temperature, because the oil whose temperature rises after the servo motor 27 is cooled is supplied to the parent converter 96. Therefore, the difference between the oil and the heat exchange medium can be increased in the heat exchanger 96 to improve the heat exchange efficiency of the heat exchanger 96. Therefore, it is possible to sufficiently cool the current of the servo motor 27 by utilizing the cooling capacity of the oil, and sufficiently increase the feed = reach = the original hair: the month has been disclosed in the preferred embodiment, but it is not intended to limit i; The person who is familiar with the skill of the art is defined by the scope of the patent application attached to the spirit of the present invention. The month of the month

2001-5674-PFl(Nl).ptc Page 15 1286874 ------- 92114681 V. Description of the Invention (12) - 1 』 H - Lü as the above embodiment, the screw 23 is rotated as an electric drive unit It is used to make the electric drive of the present invention; also: the invention can not be limited to this "made" service motor, compared with the hydraulic drive, the mold clamping = plastic moving energy, can obtain high rated turn勡 。 , 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服 伺服】 63 output shaft load side as shown in Figure 1). Delivered to the ball screw 5 9 (see also, in the mold clamping motor 633, also using the clamping motor 63 output shaft I using the above-mentioned timing belt 65, Transmission mechanism (see Figure 4) "Direct drive of ball screw 59 directly combined = display up to 63 output shaft and ball screw 59: straight connection mode-locking horse Figure 4 in the same part of Figure 2 is used; J. Note that the output shaft 1 33 has a ball type on the load side. (4) As a movement direction conversion, text: 141 The rotation of the ball thread die motor 63 causes the operation of the ball to be driven by the movement of the lock screw J. The mechanism mounted on the ball screw member 141 is linearly moved by the straight line motion: = function as a load device, that is, with the mechanical member ball screw 141 * the output shaft 133 is loaded on the clamping die. The load is made by the ball thread 141 including the integral formation on the clamping end (Fig. The left end) is the ball of the second conversion factor: 1286874 Λ Revised -5----Case No. 92114681 Description of invention (13) As the second conversion factor, the ball nut 丨f' can be pressed along the left and right in Fig. 4 The direction of the ball from the bead is screwed into the ball screw 59 and the output shaft 133. One by the advance and retreat mode and s again. Retreat, so that the above-mentioned machine components work. Gray turn, the ball nut 143 is replaced by the change part. The ball screw 141 is used as a moving direction rotating roller: the rod is rotated to advance and retreat the roller nut and the roller screw. 'By the body Μ: : In the embodiment, the ball screw 59 and the output shaft 133 are fixed to the output shaft _=3 Set to hollow shaft, make ball nut cap 143, advance and retreat balls The lever 59 rotates the output shaft 133 to rotate the ball screw to receive the body injection cylinder 24 and the injection piston to be used as the hydraulic cylinder 98 for the borrowing, that is, the working portion of the hydraulic circuit 90, or the field The present invention is not limited to this. As the work lock cylinder of the present invention, etc., when the main body requires the high speed and high pressure operation of the toggle mechanism 57, the servo motor 27 may be the injection drive unit.

1286874 ---------------- 车月日日 Revision ^ Schematic description of the drawings " Fig. 1 is a view showing a schematic configuration of an injection molding machine according to an embodiment of the present invention. The ΗΒ ΗΒ 2 diagram shows a cooling device of the servo motor 27 for rotating the screw 23 of the injection molding machine 10 shown in Fig. 1 . The phantom system displays the servo shown in Figure 2. The fourth figure shows the knives of the knives. In the case of the driving portion, the mode-locking motor 63 which does not project the molding machine 1 为 is the output shaft of 63, and the cooling mechanism is applied to the direct transmission mechanism of the directly connected mold-locking screw 59. Mold horse [symbol description] 20 ~ injection device 22 ~ hopper; 1 〇 ~ injection molding machine, · 2 1 ~ heating red; 2 3 ~ screw; 24 ~ injection cylinder; 27 ~ servo motor; 32 ~ 2nd bearing; ~ drive unit housing; 36 ~ rotor; 42 ·. Spline shaft; 44· - 1st side plate; 4 6~ motor frame; 5 〇 ~ clamping device; 52~ movable platen; 54~ fixed platen; 5 6~ elbow support; 59~ ball screw; Injection piston; 3 bu 1st bearing; 3 3~ output shaft; 35~ stator; 4 bu spline fitting; 43~ spline sleeve; , 4 5~ 2nd side panel; 4 7~ maser · 51~ movable mode; 5 3~fixed mold; 5 5~ guide rod; _57~ toggle mechanism; 2001-5674-PFl(Nl).ptc 1286874 Case number 92114681 曰Revision pattern simple description 6 0~cross head 62~pulley 6 4~output Shaft 71~ outer casing; 73~ cooling fluid discharge port 9 0~ hydraulic circuit; 9 1~ circulation groove; 9 2~ isolation plate; 94~2nd groove; 9 6~ heat exchanger; 9 8~ hydraulic cylinder; 3~output shaft; 1 4 3~ball nut; 6 1~ball nut; 6 3~ mold clamping motor; 65~ synchronous belt; 72~ cooling fluid supply port; 74~ cooling fluid flow path; 79-:1 ~ Load side temperature sensor; 7 9-2 ~ anti-load side temperature sensor 93 ~ 1st slot; 95 ~ 1st pump; 97 ~ 2nd pump; 9 9~ through hole; 1 4 1~ Beads threaded member;, L - 3~ passage

2001-5674-PFl(Nl).ptc第19页

Claims (1)

1286874 a cooling mechanism for the electric drive unit of the injection molding machine, and a dynamic drive unit for cooling the injection machine, wherein the cooling fluid and the borrowing fork for cooling the electric driving portion and the working fluid for fluid transfer by the cooling portion are included Supplying the working 2 working portion and the heat exchanger; the working portion is used for discharging; the μ body is used as a cooling fluid for cooling the electric driving portion; and the working fluid whose temperature is increased by cooling the electric driving portion is The heat exchanger is cooled and supplied to the working portion. 2. The cold section mechanism of the injection molding machine electrically driven crucible according to claim 1, wherein the working system oil; the working section is operated by hydraulic pressure. The cooling mechanism of the electric drive unit of the injection molding machine according to claim 1, further comprising a second pump that extracts the working fluid used in the working portion and supplies the electric driving unit as a cooling fluid. 4. The cooling mechanism of the electric drive unit of the injection molding machine according to claim 3, further comprising a second pump that extracts the working fluid and supplies the working portion. 5. The cooling mechanism of the electric drive unit of the injection molding machine according to the fourth aspect of the invention, wherein the capacity of the first pump is smaller than the capacity of the second pump. 6. The cold portion mechanism 'in' of the injection molding machine electric drive unit according to claim 1, further comprising a first groove and a second groove communicating with the first groove. The first groove stores the working portion The working fluid supplied to the electric drive unit as a cooling fluid after use; the second tank stores the working fluid supplied to the working portion. 1286874 No. 921URR1 Amendment 6. Patent application scope: For example, the injection molding machine electric drive 鼾m = the injection cylinder and the motor of the human injection molding machine described in the first paragraph of the patent scope; the second: the mechanism also includes the injection The electric motor for driving the screw of the molding machine is the electric drive unit. ΛΑ Υ 冷却 申请 申请 申请 申请 申请 申请 申请 冷却 冷却 冷却 冷却 冷却 J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J The cooling unit includes: a cooling fluid supply port provided on one side of the electric drive unit connected to the load device, that is, a load side, for supplying the working fluid as the cooling fluid, and a cooling fluid discharge port. The electric drive unit is not connected to the load device, that is, the counter load side, and it is convenient to discharge the working fluid as the cooling fluid. 9. The cooling mechanism of the electric drive unit of the injection molding machine according to claim 1, further comprising: a load device connected to the electric drive unit and operated by the electric drive unit; the electric drive unit之一 One side of the device connection, that is, the counter load side, is provided with a rotation speed detecting portion that detects the rotational speed of the electric drive unit. The cooling mechanism of the injection molding machine part according to claim 1, further comprising: a load device connected to the electric drive unit: "the moving portion is driven to operate; the electric driving portion; One side of the connection, that is, the load side, is provided with a temperature detecting portion that detects the temperature of the negative side of the electric driving portion. 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 And a load device that is driven to be driven by the electric drive unit; the anti-load side of the electric drive unit that is not connected to the load device; and a temperature detecting unit that detects the temperature of the anti-load side of the electric drive unit . 1 2. A method for cooling an electric drive unit of an injection molding machine, comprising: an electric drive unit and a work unit that operates by receiving supply of a working fluid, wherein the cooling method is to discharge the work unit The working fluid is used as a cooling fluid for cooling the electric driving portion; the working fluid used as the working fluid for cooling the electric driving portion is also cooled, and then supplied to the working portion. 1 . The method of cooling an electric drive unit of an injection molding machine according to claim 12, wherein the working system oil is operated by a hydraulic pressure. [1] The method of cooling the electric drive unit of the injection molding machine according to Item 1, wherein the temperature of the load side of the electric drive unit connected to the load device is detected, and the temperature is detected. The temperature controls the electric drive unit. 2001-5674-PFl(Nl).ptc Page 22 1286875 Four---9X114681___年月日日 Chinese invention summary (invention name: cooling mechanism and cooling method installed in the electric drive unit of the injection molding machine) The cooling machine of the electric drive unit of the cold-injection molding machine includes a cooling mechanism of the electric drive unit of the cold machine, wherein the work of supplying the working fluid supplied by the body is used as a cooling flow for cooling the electric drive unit. H machine body, (a), the representative figure of the case is: Figure 4 (two), the representative figure of the representative figure of the case representative symbol: 3 1 ~ 1st bearing; 3 2 ~ 2nd bearing; 34 ~ drive machine Shell; 35~ stator; 36~ rotor; 4 5~ 2nd side plate; 4 7~ encoder; 63~ clamping motor; 7 2~ cooling fluid supply port; 44~1st side plate; 4 6~ motor frame; 9~ball screw; 71~ jacket; 7 3~ cooling fluid discharge port; οΐ in1e^n1o!din^Jh1n1 mCd°^nS f%R SLECTRIC DRIVING PART A cooling mechanism for cooling an electric driving part of an injection molding machine, Include a cooling part For cooling the electric driving part; and an actuating part actuated by being supplied an actuating fluid, the actuating fluid being in fluid communication with the cooling part, the actuating fluid may be used as a cooling fluid for cooling the electric driving 2001-5674-PFl(Nl).ptc Page 2 1286874 Case No. 92114681 曰 Amendment 4, Chinese Abstract (Invention Name: Cooling Mechanism and Cooling Method Mounted in Electric Drive Section of Injection Molding Machine) 74~Cooling Fluid Flow Path 9 0~hydraulic circuit; 1~recirculation groove 93~1st groove 95~1st pump 97~2nd pump 9 9~through hole; 1 4b ball screw; L - 1 , L_2, L - 3 ~ oil path 79-1~load side temperature sensor; 79-2~reverse load side temperature sensor 9 2~isolation plate; 94~2nd slot; 9 6~ heat exchanger; 9 8~ hydraulic cylinder; 133~output shaft; 143~ Ball nut; VI, English invention summary (invention name: COOLING MECHANISM FOR COOLING ELECTRIC DRIVING PART OF INJECTION MOLDING MACHINE AND COOLING METHOD FOR THE SAME) part. 2001-5674-PFl(Nl).ptc Page 3